David L. R. Reeves

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Brentwood, GB

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Patents Grantslast 30 patents

Information Patent Grant
Process for the production of photographic images by dye diffusion...
- Patent number 4,386,149
- Issue date May 31, 1983
- Ciba-Geigy AG
- Leslie F. A. Mason
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo compounds useful in a photographic dye diffusion transfer process
- Patent number 4,285,859
- Issue date Aug 25, 1981
- Ciba-Geigy AG
- Rainer Kitzing
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for the production of photographic images by dye diffusion...
- Patent number 4,269,928
- Issue date May 26, 1981
- Ciba-Geigy Aktiengesellschaft
- Leslie F. A. Mason
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Light sensitive photographic material containing development inhibi...
- Patent number 4,226,934
- Issue date Oct 7, 1980
- Ciba-Geigy AG
- Terence C. Webb
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Azo(hydrazo)-anthraquinone compounds
- Patent number 4,216,146
- Issue date Aug 5, 1980
- Ciba-Geigy AG
- Rainer Kitzing
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY